Tsiolkovsky

Konstantin Tsiolkovsky was a Russian scientist and pioneer of astronautics, often referred to as the father of modern rocketry. In the early 20th century, he formulated the theoretical foundations of space travel, including the Tsiolkovsky rocket equation, which describes how a rocket's velocity changes as it expels exhaust. He envisioned the possibility of traveling to outer space and emphasized the importance of science and technology for humanity's future. His ideas inspired later developments in rocket and space travel, laying the groundwork for the achievements of space exploration we see today.